Torque wrench vs temp

Seems like I should know this but I don't. It is supposed to be in the mid 30's the rest of the week and I would like fit my rings to the cyl bore and torque the rods and head on.

My question is will the temp through off my torque wernch calibration? I thought I heard somewhere the temp when torquing should be about 70 deg.

Mon Jan 31, 2005 7:32 pm

70 Deg is a standard temp, The torque wrench should not deviate an appreciable amount in the lower temps.

Mon Jan 31, 2005 8:16 pm

Never heard that one. I'm sure somewhere where its super critical temp may be a factor but I can tell you in all my years as an A/C tech I've never been taught or told anything about that. Even at GE school in cinncy they never mentioned it. So what I'm saying, if the world's aircraft engines do not care, I can't believe in tractor world it would matter.

Mon Jan 31, 2005 8:51 pm

Never heard of that one too! I remember I had a warrant officer ask me "What's the torque on that fitting son".My reply was "German sir"
"Guten Tight".

Tue Feb 01, 2005 7:52 am

WK what aircraft do you work on?

Tue Feb 01, 2005 8:15 am

Thanks guys
I've always belived in do it right the first time. I missed a whole month and a half mowing because I needed to change the head gasket. Ant
d so the head was off better lap the valves. I'm this far better check the rings and put in new bearings etc. etc.

Tue Feb 01, 2005 9:44 am

Well, while you were in there...saves time later!

Tue Feb 01, 2005 11:12 am

I don't think it'll matter much, Cowboy. You'll need to retorque the head bolts after you run the engine for a while anyway and, if you do it right, maybe it'll be warm then. Your initial torque figure should seal it easily for the first running.

Tue Feb 01, 2005 11:17 am

WK what aircraft do you work on?

I work for a corporate flight dept. We operate or have operated over the years the following A/C:
Hawker 700, 800
Gulfstream II, III, IV
Challenger 600
CRJ 100, 200
Boeing 727
Boeing BBJ 737
Westwind II
I'm probably leaving some out in that list but thats the jist.

Tue Feb 01, 2005 2:23 pm

I'm Corporate too. We have GV's and G200's now. We had Citation 3's and G IV's before. I've done some 700 and 800 Hawker as well. I do small stuff for friends, and a Stearman too.